2172230 has 8 divisors (see below), whose sum is σ = 3910032. Its totient is φ = 868888.

The previous prime is 2172229. The next prime is 2172239. The reversal of 2172230 is 322712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2172199 and 2172208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108602 + ... + 108621.

It is an arithmetic number, because the mean of its divisors is an integer number (488754).

2^2172230 is an apocalyptic number.

2172230 is a deficient number, since it is larger than the sum of its proper divisors (1737802).

2172230 is a wasteful number, since it uses less digits than its factorization.

2172230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217230.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2172230 is about 1473.8487032257. The cubic root of 2172230 is about 129.5095921697.

Adding to 2172230 its reverse (322712), we get a palindrome (2494942).

The spelling of 2172230 in words is "two million, one hundred seventy-two thousand, two hundred thirty".